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Homebrew SDR HF transceiver

Posted on Thursday, December 13th, 2018 in SDR by DP

07-31-28-Screenshot_2017-12-28_17-11-51

Simonhk (G0FCU) wrote a series of posts on building homebrew SDR HF transceiver:

However, what you might notice is the presence of image products in the waterfall. The processing of the signal suppresses all but the very strongest of these so they don’t appear as audio but it is mighty confusing when they are on the waterfall but actually not there (if you see what I mean)!
I am in the process of building a QSD or Tayloe Detector, which should provide better rejection of images. I have breadboarded one of these, it works but not very well. I think that this might be due to the length of leads I have on the breadboard so I am trying to use Eagle CAD to design a circuit board to overcome these problems.

Check out the video after the break.

 

This entry was posted on Thursday, December 13th, 2018 at 11:59 pm and is filed under SDR. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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